Positive results from Alkermes' ALKS 33 clinical trials announced

Alkermes, Inc. (NASDAQ: ALKS) today announced positive topline data from two clinical trials of ALKS 33, an investigational oral opioid modulator for the treatment of addiction and other central nervous system disorders. Data from the studies, ALK33-003 and ALK33-004, showed that ALKS 33 was generally well tolerated and successfully blocked the effects of an opioid, with a duration of action that supports once daily dosing. Based on these results, Alkermes expects to initiate a phase 2 study of ALKS 33 by the end of calendar 2009.

“The data for ALKS 33 demonstrate our ability to develop new chemical entities based on our unique understanding of biological pathways and opioid pharmacology and sets the stage for the next phase of growth for our pipeline,” said Elliot Ehrich, M.D., Chief Medical Officer at Alkermes. “We look forward to moving ALKS 33 into phase 2 development.”

Source: Alkermes, Inc.